diff --git a/drivers/watchdog/ep93xx_wdt.c b/drivers/watchdog/ep93xx_wdt.c
index e9f950ff86eaee3e685bd35b4eb9c17221da4cde..cdd55e0d09f8410b949f730fb1cdd6ba07db8ddd 100644
--- a/drivers/watchdog/ep93xx_wdt.c
+++ b/drivers/watchdog/ep93xx_wdt.c
@@ -29,6 +29,7 @@
 #include <linux/watchdog.h>
 #include <linux/timer.h>
 #include <linux/uaccess.h>
+#include <linux/io.h>
 #include <mach/hardware.h>
 
 #define WDT_VERSION	"0.3"